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RoundWay Linear Roller Bearings

RoundWay GroupThomson invented the RoundWay® Linear roller bearing for use in high load, heavy duty applications. The RoundWay bearing combines the high load capacity of hardened and ground steel recirculating rollers with a rigid malleable iron mounting block providing high load capacity with smooth linear travel. The chain-connected rollers allow the RoundWay to travel at extremely high speeds in unforgiving, contaminated environments.


  • Chain-guided rollers provide travel speeds up to 30 m/s (100 ft/s).
  • Bearing mounts self-align in all directions and even allow for slightly out of parallel 60 Case LinearRace ways.
  • All-steel construction allows operation in temperatures up to 315 oC (600°F) and maximum system rigidity.
  • Available in single mounts or dual "V" mounts that resist side-loading.